What do you think lincoln meant here?
"Any people anywhere, being inclined and having the power, have the right to rise up, and shake off the existing government, and form a new one that suits them better. This is a most valuable - a most sacred right - a right, which we hope and believe, is to liberate the world.Nor is this right confined to cases in which the whole people of an existing government may choose to exercise it. Any portion of such people, that can may revolutionize and make their own of so many of the territory as they inhabit."
Very straightforward and unambiguous, wouldn't you say? No hidden meaning..nothing complicated...unfortunately, he was a lying bastard.
That was pretty much the majority opinion of the day, and even after secession. Some people just don't like the historical record and need to invent another history.